Automatic valve.



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Inl/6705071' @29% Wirt/71655 es Patented September 27, 1904.

PATENT OEEICE.

EDGAR L. DAVIS, OF CARROLLTON, ILLINOIS.

AUTOMATIC VALVE.

SPECIFICATION forming part of Letters l'jatent No. 770,845, datedSeptember 27, 1904.

Application filed February 19, 1904. Serial No. 194,440. (No model.)

To a/ZZ whom it may concern:

Be it known that I, EDGAR L. DAvis,residing at Carrollton, in the countyof Greene and State of Illinois, have invented a new and usefulImprovement in Automatic Valves, of which the following is adescription, reference beingl had to the accompanying drawings, whichare a part of this specilication.

My invention has relation to improvements in valves of a class whereinthe valve is operated upon automatically by means of a float resting onthe water, which rises and falls as the water in the vessel rises andfalls.

rIhe object of my invention is to provide a compact device which is selfcontained and which can be` applied to any tank or boiler with theminimum amount of labor and when applied all the working parts are inperfect line and will remain so regardless of the springing of the pipeswhich may be connected thereto and whereby the water in said tank orboilerl may be automatically kept at a desired level.

With the above primary object in view the invention consists of thedevices and parts or their equivalents, as hereinafter set forth.

In the accompanying drawings, Figure l is avertical section of theentire device attached to a plate. Fig. Qis an elevation of the valve,showing recess for self-adjusting ring, also of the slotted arm. Fig. 3is a top view of selfadjusting ring. Fig. 4 is a side view of Fig. 3.Fig. 5 is a side view of lever, to which is pivoted the rod whichsuspends the lioat. Fig. 6 is an edge view of Fig. 5. Fig. 7 is a sideview of the bolt by which the lever shown in Figs. 5 and 6 is pivoted.Fig. 8 is a side view of the right-angled bend in the rod which suspendsthe float.

Similar characters refer to similar parts through the several views.

Referring to the drawings, the letter a indicates the valve-chamber,provided with the slot a passing through one side; b, the valveseat; c,the valve; c', the recess formed to admit the self-adjusting ring c2,(more clearly shown in Figs. 2, 3, and L1;) d, the arm, having theelongated opening el passing through it; c, the bar extending outwardlyfrom the valve-chamber a, having an eye formed in its outer end; f, thebend which is attached to the valve-chamber a by means of its threadedend and to which the pipe g is attached by means of threads cut on itsend.

g is a plate through which are openings to admit the ends ofvalve-chamber a and pipe g.

7L 7a h2 h3 are set-nuts which secure the valve-chamber a and pipe g toplate g; z', the threaded cap which covers the upper end ofvalve-chamber ca,- z", the oil-cup; j, the hanger extending downwardfrom the plate g; 7c, the lever, which is loosely pivoted to the hangerj by means of the bolt j", (see Fig. 7,) passing through said hanger jfrom the opposite side; c, the-bolt which passes freely through theelongated opening OZ in arm d, said bolt shown more clearly in Figs. 5and 6; Z, the opening (see Fig. 6) through which the end of rod n,attached to the ioat m, passes.

In the valve-chamber a immediately above the valve-seat 6 are openings l2 3.

It will be seen by referring to the sectional view of my device in Fig.1 that I provide for the compact self-contained device by constructingthe valve-chamber a and valve-seat with ,openings l 2 3, in one piece,the upper end of which is threaded to admit of set-'nuts being turnedthereon. This threaded end passes through the plate g', with oneset-nut, 7L, at the underside and the other set-nut, L, at the upperside. The feed-pipe g, on which are set-nuts h2 7b3, also passes throughplate g. By tightening these set-nuts the whole construction is rigidlyheld to plate g. The valve cis placed in the chamber c, and the arm d,passing through the slot a in the chamber c, is turned firmly into saidvalve c.

From the under side of plate g is the hanger j, extending downward, sothat the center of the hole in its lower end is in line with the centerof the slot d in the arm UZ when the valve c is resting on its seat b.The lever luis then pivoted to the hanger j' by means of the bolt j (seeFig. 7) passing through it being turned lirmly into lever c., thusleaving it free to turn thereon. The bolt 7c (see Fig. 6) is then passedthrough the opening d in the arm (Z and firmly turned into lever 7s.Passing through the opening Zat the other end of lever /c is theright-angled hook at the end IOO (see Fig. 8) of rod n. rIhis rod npasses through guide-bar c. At the other end of this rod n is attachedthe float m.

In the foregoing description I have shown the bend f as a separate part,being attached to chamber a by means of threads cut on the male end ofsaid bend. I do not wish to be understood to bind myself to thisparticular form. I may preferably form the whole valvechamber a and bendf in one piece.

The operation of my invention from the foregoing description will bereadily understood. As the water in the reservoir falls the float mcorrespondingly falls, thus drawing down lever which in turn raises theopposite end at S, which, by reason of its being pivoted to hanger j andalso its engagement with the arm CZ by means of the bolt lc passingthrough the elongated opening CZ of the arm d and from the fact thatsaid arm d is lixedly attached to valve c, said valve c is made to riseand leave its seat I), thus allowing the water to pass through said seatand flow through the openings 1 2 3 into the reservoir until the waterin said reservoir shall rise to high-water mark, when it will raisefloat m and close the valvecon its seat When the device is applied to asteam-boiler, the operation is precisely the same, with the exceptionthat when the valve c is raised from its seat?) steam will pass throughthe openings l 2 3 and j follow the bend fand pipe g to the pump, (notShown,) automatically starting said pump, which will force water intothe boiler through a pipe (not shown) until at high-water mark theraising of the float m will close valve c on its seat and by so doingshut off the steam and stop the pump.

What I claim as my invention is- 1. In an automatic valve thecombination of a plate having a hanger attached to its 4under side saidhanger carrying a lever at the one endof which is suspended a float,openings passing through said plate to admit ends of valve-chamber andpipe which are firmly held thereto by means of jam-nuts a valvechamberhaving an elongated opening in one side thereof, a Valve therein, saidvalve provided with an arm having an elongated opening in its outer end,projecting from one side thereof and passing through opening in the sideof valve-cham ber and adapted to engage with the free end of levercarried by the hanger attached to the under side of the plate.

2. In an automatic valve, the combination of a plate having a hangerattached to its under side, a valve-chamber having elongated slot in oneside of same, openings through said valve-chamber over valve-seat, avalve therein said valve provided with an arm having an elongated slotin its outer end projecting from one side thereof and passing throughopening in side of valve-chamber and adapted to engage with the free endof the lever which is pivoted to the hanger, to which (lever) at itsopposite end is suspended a iioat which rests on the water in thereservoir and when the water rises and falls the valve in thevalvechamber will rise and fall by means of its engagement with thelever to which is attached the float substantially as set forth.

3. In an automatic valve the combination of a plate with hanger attachedto under side, a valve-chamber, having an elongated opening in one sidethereof, with valve therein, said valve provided with an arm projectingfrom one side thereof and passing through' opening in the side ofvalve-chamber and adapted when operated upon by the rising and Ifallingof the water in the reservoir through the means carried by the hangerattached to the under side of the plate said valve in valve-chamber willalso rise and fall.

4. In an automatic valve, the combination of a plate having a hangerattached toits under side, a valve-chamber having elongated slot in oneside of same, openings through said valve-chamber over valve-seat, avalve, said Valve provided with an arm projecting from one side thereofand passing through slot in the side of valve-chamber, a lever pivotedto the hanger attached to the under side of plate, said lever engagingat one end to the arm and adapted when the free end of said lever isoperated upon by the rising and falling of the oat on the water in thereservoir said valve will also rise and fall.

5. In an automatic valve, the combination of a plate having holestherein for valvechamber and pipe, a hanger attached to the under sideof said plate, a valve-chamber having elongated slot in one side ofsame, openings through said chamber just over the valve-seat, aguide-rod with an eye formed in its outer end, extending from the sideof valve-chamber, a valve, said valve provided with an arm having anelongated opening in its'outer end projecting from one side thereof andpassing through the slot in the side of valve-chamber, a lever pivotedto hanger attached to the under sideof plate said lever loosely engagedat one end to arm, a float, a rod attached to said ioat and passingthrough the eye of the guide-rod projecting from side of valve-chamberand adapted so that as the float rises and falls the valve invalve-chamber will rise and fall all substantially as set forth.

In testimony whereof I afliX my signature in presence of two witnesses.

EDGAR L. DAVIS Witnesses:

WILLIAM LAVERY, M. T. CULWELL.

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